:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--paper:#f4f1e9;--surface:#fffdf8;--surface-strong:#fff;--ink:#073238;--muted:#5e706f;--line:#ccd4cf;--line-strong:#879994;--green:#17653c;--orange:#e5571f;--orange-soft:#fff0e8;--green-soft:#e9f4ec;--danger:#a52b20;--focus:#1475bd;--status-bg:#073238;--status-text:#fff;--status-muted:#bed3d0;--status-line:#6b8a8a;--font:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;font-family:var(--font);background:var(--paper);-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{min-width:320px;color:var(--ink);background:var(--paper);margin:0;font-size:16px;line-height:1.65}button,textarea,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.skip-link{z-index:100;color:#fff;background:var(--ink);padding:10px 14px;position:fixed;top:8px;left:8px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.topbar{z-index:20;border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--surface) 94%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);position:sticky;top:0}.topbar-inner{justify-content:space-between;align-items:center;gap:24px;width:min(100% - 32px,1180px);min-height:72px;margin-inline:auto;display:flex}.brand{min-height:48px;color:var(--ink);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:0;display:inline-flex}.brand-mark{border:5px solid var(--orange);width:34px;height:34px;box-shadow:inset 0 0 0 6px var(--surface), inset 0 0 0 10px var(--orange);border-radius:50%}.brand span:last-child{line-height:1.15;display:grid}.brand b{letter-spacing:.02em;font-size:17px}.brand small{color:var(--muted);margin-top:4px;font-size:12px}.top-status{align-items:center;gap:14px;display:flex}.top-status span{color:var(--green);font-size:13px;font-weight:700}.top-status b{color:var(--status-text);background:var(--status-bg);border-radius:4px;padding:5px 10px;font-size:13px}.live-notice{border-left:4px solid var(--orange);background:var(--surface);gap:16px;width:min(100% - 32px,1180px);margin:16px auto 0;padding:12px 16px;display:flex}.live-notice b,.live-notice p{margin:0}.workspace{grid-template-columns:240px minmax(0,1fr);align-items:start;gap:44px;width:min(100% - 32px,1180px);margin:20px auto 72px;display:grid}.program-rail{min-width:0;position:sticky;top:100px}.program-heading{border-bottom:2px solid var(--ink);margin-bottom:14px;padding-bottom:12px}.program-heading span{color:var(--muted);font-size:12px}.program-heading h2{margin:3px 0 0;font-size:22px;line-height:1.2}.program-rail ol{margin:0;padding:0;list-style:none}.program-rail li{border-bottom:1px solid var(--line)}.program-rail li button{width:100%;min-height:58px;color:var(--muted);cursor:pointer;text-align:left;background:0 0;border:0;border-left:4px solid #0000;grid-template-columns:42px 1fr;align-items:center;gap:8px;padding:9px 8px;display:grid}.program-rail li button:hover{color:var(--ink);background:color-mix(in srgb, var(--surface) 70%, transparent)}.program-rail li button.selected{color:var(--ink);border-left-color:var(--orange);background:var(--surface)}.program-rail li button.current:not(.selected){border-left-color:var(--green)}.program-rail li button>span:first-child{color:var(--green);text-align:center;font-size:12px;font-weight:800}.program-rail li button>span:last-child{line-height:1.25;display:grid}.program-rail li b{font-size:14px}.program-rail li small{margin-top:4px;font-size:11px}.program-resources{flex-wrap:wrap;align-items:center;gap:4px 16px;margin-top:18px;display:flex}.program-resources a{min-height:44px;color:var(--green);align-items:center;font-weight:700;display:inline-flex}.program-resources a+a{border-left:1px solid var(--line-strong);padding-left:16px}.activity{min-width:0}.current-bar{width:min(100% - 32px,1180px);min-height:96px;color:var(--status-text);background:var(--status-bg);border-radius:8px;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr) auto;align-items:center;gap:20px;margin:16px auto 0;padding:16px 20px;display:grid}.status-block{min-width:0}.status-block+.status-block{border-left:1px solid var(--status-line);padding-left:20px}.status-block>span{color:var(--status-muted);margin-bottom:3px;font-size:12px;font-weight:800;display:block}.status-block p{align-items:baseline;gap:8px;margin:0;line-height:1.35;display:flex}.status-block time{flex:none;font-size:14px;font-weight:800}.status-current b{font-size:20px}.status-next b{font-size:15px}.status-control{justify-content:flex-end;display:flex}.current-bar button{min-height:44px;color:var(--status-text);border:1px solid var(--status-line);cursor:pointer;background:0 0;border-radius:4px;padding:8px 12px}.activity-surface{background:var(--surface);border:1px solid var(--line);overflow:hidden}.section-header{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;column-gap:24px;padding:30px 36px 28px;display:grid}.section-header>div{align-items:center;gap:10px;display:flex}.section-header>div p,.section-header time{color:var(--muted);margin:0;font-size:13px;font-weight:700}.section-header time{grid-area:1/2}.mode-label{color:var(--ink);border:1px solid var(--line-strong);border-radius:3px;padding:3px 8px;font-size:12px;font-weight:800}.mode-label.work{color:var(--green);border-color:var(--green);background:var(--green-soft)}.section-header h1{max-width:18ch;color:var(--ink);letter-spacing:-.04em;grid-column:1/-1;margin:26px 0 0;font-size:clamp(34px,5vw,54px);font-weight:750;line-height:1.06}.section-subtitle{color:var(--muted);grid-column:1/-1;margin:10px 0 0;font-size:18px}.section-output{border-top:1px solid var(--line);grid-column:1/-1;gap:18px;margin:24px 0 0;padding-top:16px;display:flex}.section-output b{color:var(--green);white-space:nowrap;font-size:13px}.activity-body{padding:32px 36px 40px}.opening-lead,.plain-intro{max-width:44rem;margin:0 0 30px;font-size:20px;line-height:1.65}.note-starter{border-block:1px solid var(--line);margin:-8px 0 30px}.note-starter summary{color:var(--green);text-underline-offset:4px;padding-inline:0;text-decoration:underline}.note-starter summary:hover{color:var(--ink)}.note-starter-body{padding:4px 0 24px}.note-starter-body>p{max-width:46rem;margin:0 0 16px}.note-starter-safety{border-left:4px solid var(--orange);background:var(--orange-soft);margin-bottom:18px;padding:14px 16px;display:grid}.note-starter-safety span{color:var(--muted)}.starter-list{border-top:1px solid var(--line-strong)}.starter-item{border-bottom:1px solid var(--line)}.starter-item>summary{min-height:88px;color:var(--ink);cursor:pointer;grid-template-columns:34px minmax(0,1fr) 28px;align-items:center;gap:12px;padding:14px 4px;text-decoration:none;list-style:none;display:grid}.starter-item>summary::-webkit-details-marker{display:none}.starter-item>summary:hover{color:var(--green);background:color-mix(in srgb, var(--surface) 62%, transparent)}.starter-item>summary:after{content:"＋";color:var(--green);grid-area:1/3;font-size:22px;font-weight:700}.starter-item[open]>summary:after{content:"−"}.starter-number{width:30px;height:30px;color:var(--surface-strong);background:var(--green);border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:800;display:inline-flex}.starter-label{min-width:0;display:grid}.starter-label small{color:var(--orange);font-size:12px;font-weight:800}.starter-label b{font-size:17px;line-height:1.4}.starter-label>span{color:var(--muted);font-size:14px}.note-starter-prompt{border:1px solid var(--line-strong);background:var(--surface-strong);margin:0 0 18px 46px}.note-starter-prompt header{justify-content:space-between;align-items:center;gap:18px;padding:14px 16px;display:flex}.note-starter-prompt header p{margin:0;font-weight:750}.note-starter-prompt pre{border-top:1px solid var(--line);max-height:32rem}.two-outcomes{border-block:1px solid var(--line);grid-template-columns:1fr 1fr;display:grid}.two-outcomes>div{align-items:center;gap:18px;min-height:140px;padding:24px;display:flex}.two-outcomes>div+div{border-left:1px solid var(--line)}.two-outcomes span{color:var(--orange);font-size:42px;font-weight:800;line-height:1}.two-outcomes p{margin:0;font-size:18px}.group-task{border-block:1px solid var(--line);margin:30px 0;padding:22px 0}.group-task header{align-items:baseline;gap:14px;display:flex}.group-task time{color:var(--orange);font-size:14px;font-weight:850}.group-task h2{margin:0;font-size:22px}.group-task ol{counter-reset:group-step;grid-template-columns:1fr;gap:10px;margin:18px 0 0;padding:0;list-style:none;display:grid}.group-task li{counter-increment:group-step;grid-template-columns:auto 1fr;gap:6px;min-width:0;display:grid}.group-task li:before{content:counter(group-step) "."}.group-task p{color:var(--muted);margin:16px 0 0;font-size:14px}.action-row{flex-wrap:wrap;gap:10px;margin-top:28px;display:flex}.primary-button,.secondary-button{cursor:pointer;border-radius:5px;justify-content:center;align-items:center;min-height:46px;padding:11px 18px;font-weight:750;text-decoration:none;display:inline-flex}.primary-button{color:#fff;border:1px solid var(--green);background:var(--green)}.primary-button:hover{background:color-mix(in srgb, var(--green) 88%, black)}.primary-button:active{transform:translateY(1px)}.primary-button:disabled{cursor:not-allowed;opacity:.48}.secondary-button{color:var(--ink);border:1px solid var(--line-strong);background:0 0}.secondary-button:hover{background:var(--surface-strong)}.lesson-pair{border-block:1px solid var(--line);grid-template-columns:1fr 1fr;gap:0;display:grid}.lesson-pair section{padding:28px}.lesson-pair section+section{border-left:1px solid var(--line)}.lesson-pair section>span,.plan-split section>span,.takeaway-list section>span{color:var(--orange);letter-spacing:.08em;font-size:12px;font-weight:850}.lesson-pair h2,.takeaway-list h2{margin:8px 0 18px;font-size:24px;line-height:1.25}.lesson-pair ul{padding-left:1.2rem}.lesson-pair li{margin:7px 0}.lesson-pair ol{margin:0;padding:0;list-style:none}.lesson-pair ol li{border-top:1px solid var(--line);grid-template-columns:70px 1fr;padding:10px 0;display:grid}.lesson-pair ol small{color:var(--muted)}.lesson-pair p{color:var(--muted);font-size:14px}.lecture-note{border-left:4px solid var(--orange);background:var(--orange-soft);margin:26px 0;padding:16px 18px;display:grid}.safety-note{border:1px solid var(--green);background:var(--green-soft);margin:26px 0;padding:16px 18px;display:grid}.safety-note span,.lecture-note span{color:var(--muted)}.work-steps{border-block:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:0 0 32px;padding:0;list-style:none;display:grid}.work-steps li{align-items:center;gap:10px;min-height:66px;padding:12px 16px;display:flex}.work-steps li+li{border-left:1px solid var(--line)}.work-steps span,.work-block h2 span{color:var(--orange);font-weight:850}.work-block{border-top:1px solid var(--line);padding:28px 0}.work-block:first-of-type{border-top:0}.work-block h2,.next-action h2{margin:0 0 20px;font-size:22px}.work-block h2 span{margin-right:12px}.choice-list{border:0;border-top:1px solid var(--line);margin:0 0 24px;padding:0}.choice-list legend{width:100%;color:var(--muted);padding:0 0 10px;font-size:13px;font-weight:800}.choice-option{border-bottom:1px solid var(--line);cursor:pointer;grid-template-columns:24px 1fr;align-items:center;gap:12px;min-height:64px;padding:10px 4px;display:grid}.choice-option:has(input:checked){background:var(--green-soft)}.choice-option input{width:19px;height:19px;accent-color:var(--green);margin:0}.choice-option span{grid-template-columns:minmax(9rem,.42fr) 1fr;align-items:baseline;gap:14px;min-width:0;display:grid}.choice-option small{color:var(--muted)}.field-grid,.plan-split{grid-template-columns:1fr 1fr;gap:18px;display:grid}.field{gap:8px;min-width:0;display:grid}.field>span{font-size:14px;font-weight:800}.field textarea,.field input{width:100%;min-height:48px;color:var(--ink);border:1px solid var(--line-strong);background:var(--surface-strong);resize:vertical;border-radius:4px;padding:12px 14px}.field textarea{min-height:104px}.field textarea::placeholder,.field input::placeholder{color:color-mix(in srgb, var(--muted) 80%, transparent)}.check-row{cursor:pointer;grid-template-columns:24px 1fr;gap:12px;padding:14px 0;display:grid}.check-row input,.risk-list input{width:20px;height:20px;accent-color:var(--green);margin:3px 0 0}.check-row span{display:grid}.check-row small{color:var(--muted)}.prompt-preview{border:1px solid var(--line-strong);background:var(--surface-strong);margin-top:14px}.prompt-preview>div{justify-content:space-between;align-items:center;gap:18px;padding:16px;display:flex}.prompt-preview pre{border-top:1px solid var(--line)}.copy-action{justify-items:end;gap:10px;display:grid}.manual-copy{width:min(100%,34rem);min-height:10rem;color:var(--ink);border:1px solid var(--line-strong);background:var(--surface);resize:vertical;padding:10px}.prompt-preview p{margin:0}.prompt-preview.is-waiting>p{color:var(--muted);border-top:1px solid var(--line);padding:10px 16px;font-size:13px}details{border-top:1px solid var(--line)}summary{cursor:pointer;min-height:48px;padding:12px 16px;font-weight:750}pre{color:var(--ink);background:var(--paper);white-space:pre-wrap;margin:0;padding:18px;font:14px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow:auto}.switch-note{color:var(--muted);margin:12px 0 0;font-size:14px}.alternative-note{margin-top:18px}.alternative-note p{color:var(--muted);margin:0;padding:0 16px 16px}.completion-line{border:1px solid var(--line);background:var(--paper);margin:24px 0;padding:16px 18px;display:grid}.completion-line span{color:var(--muted);font-size:14px}.completion-line.done{border-color:var(--green);background:var(--green-soft)}.break-body{text-align:center;align-content:center;place-items:center;min-height:380px;display:grid}.break-body p{color:var(--muted);margin:0}.break-body strong{color:var(--orange);margin-top:16px;font-size:clamp(64px,12vw,112px);line-height:1}.break-body span{margin:12px 0 28px;font-size:20px}.risk-list{border-block:1px solid var(--line)}.risk-list label{cursor:pointer;grid-template-columns:28px 44px 1fr;align-items:start;gap:12px;min-height:100px;padding:20px 10px;display:grid}.risk-list label+label{border-top:1px solid var(--line)}.risk-no{color:var(--orange);font-size:28px;font-weight:850;line-height:1}.risk-list label>span:last-child{display:grid}.risk-list b{font-size:20px}.risk-list small{color:var(--muted);margin-top:4px;font-size:15px}.plan-split{margin-bottom:34px}.plan-heading{margin:30px 0 18px;font-size:22px}.plan-split section{border:1px solid var(--line);padding:22px}.plan-split .field{margin-top:10px}.next-action{border-top:1px solid var(--line);padding-top:28px}.share-sentence{border-left:4px solid var(--line-strong);background:var(--paper);margin:28px 0;padding:18px}.share-sentence.ready{border-left-color:var(--green);background:var(--green-soft)}.share-sentence span{color:var(--muted);font-size:12px;font-weight:800}.share-sentence p{margin:6px 0 0;font-size:18px}.takeaway-list{border-block:1px solid var(--line)}.takeaway-list section{padding:24px 0}.takeaway-list section+section{border-top:1px solid var(--line)}.takeaway-list h2{margin-bottom:6px}.takeaway-list p{color:var(--muted);margin:0}.record-preview{border:1px solid var(--line);margin-top:24px}.text-button{min-height:44px;color:var(--green);cursor:pointer;background:0 0;border:0;margin-top:30px;padding:6px 0;text-decoration:underline}.text-button.danger{color:var(--danger)}.next-link{width:100%;min-height:76px;color:var(--ink);border:1px solid var(--line);background:var(--surface);cursor:pointer;text-align:left;grid-template-columns:52px 1fr auto;align-items:center;gap:10px;margin-top:12px;padding:14px 18px;display:grid}.next-link:hover{border-color:var(--line-strong);background:var(--surface-strong)}.next-link span,.next-link small{color:var(--muted);font-size:12px}@media (width<=820px){.topbar{-webkit-backdrop-filter:none;backdrop-filter:none;position:static}.workspace{grid-template-columns:1fr;gap:20px}.current-bar{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}.status-control{grid-column:1/-1;justify-content:flex-end;min-width:0}.program-rail{grid-template-columns:minmax(0,1fr) auto;align-items:start;column-gap:16px;display:grid;position:static}.program-heading{grid-area:1/1}.program-rail ol{grid-area:2/1/auto/-1;grid-template-columns:repeat(4,minmax(0,1fr));display:grid}.program-rail li button{grid-template-columns:1fr;align-content:center;gap:2px;min-height:76px}.program-rail li button>span:first-child{text-align:left}.program-rail li small{display:none}.program-resources{grid-area:1/2;justify-self:end;gap:4px 12px;margin-top:0;position:static}.program-resources a{min-height:34px;font-size:13px}.program-resources a+a{padding-left:12px}.section-header,.activity-body{padding-inline:24px}}@media (width<=620px){.topbar-inner,.workspace,.live-notice,.current-bar{width:min(100% - 24px,1180px)}.workspace{gap:12px}.topbar-inner{min-height:64px}.top-status span,.brand small{display:none}.program-heading{margin-bottom:8px}.program-heading h2{white-space:nowrap;font-size:20px}.program-rail ol{scroll-snap-type:x proximity;min-width:0;max-width:100%;display:flex;overflow-x:auto}.program-rail li{scroll-snap-align:start;flex:0 0 146px;display:flex}.program-rail li button{height:100%;min-height:68px}.current-bar{gap:10px;min-height:0;padding:12px 14px}.status-block+.status-block{padding-left:10px}.status-block p{gap:0;display:grid}.status-block time{font-size:11px}.status-current b,.status-next b{font-size:13px}.status-control{grid-column:1/-1}.current-bar button{min-height:40px;padding-block:6px;font-size:12px}.section-header{padding:24px 20px 22px}.section-header h1{margin-top:12px;font-size:34px}.section-subtitle{font-size:16px}.section-output{display:none}.activity-body{padding:24px 20px 30px}.work-steps{grid-template-columns:repeat(3,minmax(0,1fr))}.work-steps li{align-items:flex-start;min-height:58px;padding:8px;font-size:12px}.work-steps li+li{border-top:0;border-left:1px solid var(--line)}.opening-lead,.plain-intro{font-size:17px}.two-outcomes,.lesson-pair,.field-grid,.plan-split,.group-task ol{grid-template-columns:1fr}.choice-option span{grid-template-columns:1fr;gap:2px}.two-outcomes>div+div,.lesson-pair section+section{border-left:0;border-top:1px solid var(--line)}.prompt-preview>div,.note-starter-prompt header,.action-row{flex-direction:column;align-items:stretch}.primary-button,.secondary-button{width:100%}.starter-item>summary{min-height:82px;padding-block:12px}.starter-label>span{margin-top:2px;line-height:1.45}.note-starter-prompt{margin-left:0}.next-link{grid-template-columns:40px 1fr}.next-link small{grid-column:2}}@media (width<=374px){.program-rail{grid-template-columns:1fr}.program-resources{grid-area:2/1;justify-self:start;margin-bottom:8px}.program-rail ol{grid-row:3}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:1ms!important}}@media (prefers-contrast:more){:root{--line:#53625e;--line-strong:#1d2e2b;--muted:#354744}.topbar{background:var(--surface);-webkit-backdrop-filter:none;backdrop-filter:none}}@media (forced-colors:active){.primary-button,.secondary-button,.current-bar button,.mode-label{border:1px solid buttontext}}@media print{.topbar,.program-rail,.current-bar,.next-link,button{display:none!important}.workspace{margin:0;display:block}.activity-surface{border:0}}.pdf-slide-page{color:#102d29;background:#e8ecea;min-height:100vh;padding:28px}.pdf-slide-heading{justify-content:space-between;align-items:flex-end;gap:24px;width:min(1440px,100%);margin:0 auto 18px;display:flex}.pdf-slide-heading span{color:#c14e20;letter-spacing:.12em;font-size:12px;font-weight:800}.pdf-slide-heading h1{margin:4px 0;font-size:clamp(28px,4vw,48px);line-height:1.12}.pdf-slide-heading p{color:#4b625d;margin:0}.pdf-slide-heading a,.pdf-slide-help a{color:#0c604f;text-underline-offset:3px;font-weight:750}.pdf-slide-stage{background:#0e1716;border:1px solid #233934;border-radius:18px;width:min(1440px,100%);margin:0 auto;padding:12px;overflow:hidden;box-shadow:0 20px 50px #1128232e}.pdf-slide-frame-shell{aspect-ratio:16/9;background:#202625;border-radius:10px;justify-content:center;align-items:center;min-height:0;display:flex;position:relative;overflow:hidden}.pdf-slide-canvas{background:#fff;max-width:100%;max-height:100%;display:block}.pdf-slide-error{color:#8f3218;text-align:center;background:#fff4ee;border-radius:8px;margin:0;padding:12px 16px;font-weight:700;position:absolute;inset:auto 20px 20px}.pdf-slide-controls{justify-content:center;align-items:center;gap:10px;padding:12px 4px 2px;display:flex}.pdf-slide-controls button{color:#102d29;min-height:42px;font:inherit;cursor:pointer;background:#f4f6f4;border:1px solid #657a75;border-radius:9px;padding:8px 15px;font-weight:750}.pdf-slide-controls button:hover:not(:disabled){background:#dce9e2}.pdf-slide-controls button:focus-visible{outline-offset:2px;outline:3px solid #f47a3d}.pdf-slide-controls button:disabled{cursor:not-allowed;opacity:.42}.pdf-slide-move{gap:8px;display:flex}.pdf-slide-page-form{color:#eef4f1;align-items:center;gap:7px;font-weight:700;display:flex}.pdf-slide-page-form input{color:#102d29;width:72px;min-height:42px;font:inherit;text-align:center;background:#fff;border:1px solid #657a75;border-radius:9px;font-weight:800}.pdf-slide-fullscreen{margin-left:auto;border-color:#f47a3d!important}.pdf-slide-status{color:#c7d3cf;text-align:center;margin:7px 4px 2px;font-size:13px}.pdf-slide-stage:fullscreen{background:#000;border:0;border-radius:0;grid-template-rows:minmax(0,1fr);width:100vw;max-width:none;height:100vh;padding:0;display:grid}.pdf-slide-stage:fullscreen .pdf-slide-frame-shell{aspect-ratio:auto;border-radius:0;width:100%;height:100%}:is(.pdf-slide-stage:fullscreen .pdf-slide-controls,.pdf-slide-stage:fullscreen .pdf-slide-status){display:none}.pdf-slide-help{color:#4b625d;align-items:center;gap:12px;width:min(1440px,100%);margin:14px auto 0;font-size:14px;display:flex}.pdf-slide-help a{margin-left:auto}@media (width<=760px){.pdf-slide-page{padding:16px 10px}.pdf-slide-heading{flex-direction:column;align-items:flex-start;gap:8px}.pdf-slide-controls{flex-wrap:wrap}.pdf-slide-page-form{order:-1;justify-content:center;width:100%}.pdf-slide-fullscreen{margin-left:0}.pdf-slide-help{flex-direction:column;align-items:flex-start}.pdf-slide-help a{margin-left:0}}